Lighting & Eyes by Dr Somdutt Prasad

Lighting plays an important role in vision. Proper lighting, be it at home or office is critical to reduce stress on eyes. Dr Somdutt Prasad — also known as Dr Som Prasad in the medical fraternity — explains the ideal type of lighting one must have at home and office. Dr Prasad is a celebrated ophthalmologist and retinal specialist.

Poor Lighting in the Workplace

Effects of poor lighting

Poor lighting puts extra pressure on our eyes and can cause:

• Eyestrain
• Irritation
• Dry burning eyes
• Blurred vision
• Headache

Lighting at home

Most of the rooms of a house are under-illuminated. In areas such as the kitchen, it is important to use bright task lights. Most people tend to switch off lights while watching television. When the room is completely dark, the contrast between the surrounding area and television screen is not comfortable for efficient vision. It is important to use normal lights in living rooms, where people mostly watch television. Excessive bright lights can wash out pictures.While task lighting is suitable in areas like the bedroom, in reading rooms it is important to use supplementary lights. However, it is vital to ensure that it is not too hot.

Lighting at office

Office work is challenging and requires good lighting for comfort. Good lighting does not mean excessive bright light. It means enough illumination so that one can easily see the displayed documents.

Remember that the computer monitor acts as source of light. Reflection of objects can cause glare and result in discomfort. Adjust its brightness, contrast and color to reduce strain on eyes. 

Eye discomfort can be reduced by using filters to diffuse overhead lighting. The room should be properly lit and one must use spectacles with anti-reflective coating. The coating eliminates reflections and allows a healthy amount of light to enter eyes for vision.

It is important to visit an eye specialist if your eyes feel uncomfortable. Uncorrected vision can further cause problems.